Le 07/11/2015 00:12, Benjamin Herrenschmidt a écrit : > On Fri, 2015-11-06 at 15:09 -0600, Scott Wood wrote: >> On Thu, 2015-11-05 at 12:47 +0100, Laurent Vivier wrote: >>> When I try to cross compile a ppc64 kernel, it generally >>> fails on the VDSO stage. This is true for powerpc64 cross- >>> compiler, but also when I try to build a ppc64le kernel >>> on a ppc64 host. >>> >>> VDSO64L fails: >>> >>> VDSO64L arch/powerpc/kernel/vdso64/vdso64.so.dbg >>> /usr/bin/powerpc64-linux-gnu-ld: >>> arch/powerpc/kernel/vdso64/sigtramp.o: >>> file class ELFCLASS64 incompatible with ELFCLASS32 >>> /usr/bin/powerpc64-linux-gnu-ld: final link failed: File in wrong >>> format >>> >>> This fails because gcc calls "collect2" with >>> "--oformat elf32-powerpcle" with ppc64 objects, without the >>> "--oformat" ld works well because it use the format of the >>> first object as output format. >>> >>> As this case is correctly managed to build the other kernel >>> objects, this patch replaces $(GCC) by $(LD) to generate the >>> VDSO objects. > > This is LE ? I think that's a bug in binutils or gcc ... I remember we > fought that a while ago for the openpower builds. It might have been > fixed in upstream toolchain.
Yes, Segher has given me the commit id. It is just what I need. Laurent _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
